564180121 has 2 divisors, whose sum is σ = 564180122. Its totient is φ = 564180120.

The previous prime is 564180083. The next prime is 564180137. The reversal of 564180121 is 121081465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 563540121 + 640000 = 23739^2 + 800^2 .

It is a cyclic number.

It is not a de Polignac number, because 564180121 - 2¹³ = 564171929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 564180121.

It is not a weakly prime, because it can be changed into another prime (564189121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282090060 + 282090061.

It is an arithmetic number, because the mean of its divisors is an integer number (282090061).

Almost surely, 2^564180121 is an apocalyptic number.

It is an amenable number.

564180121 is a deficient number, since it is larger than the sum of its proper divisors (1).

564180121 is an equidigital number, since it uses as much as digits as its factorization.

564180121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 564180121 is about 23752.4761025035. The cubic root of 564180121 is about 826.3028674947.

The spelling of 564180121 in words is "five hundred sixty-four million, one hundred eighty thousand, one hundred twenty-one".